[Core feature] Server-side compiler should strip Type Metadata

[EngHabu]

Motivation: Why do you think this is important?

While usage of DataClasses, StructuredDataSets and parameter descriptions adds great visibility and compile-time checks for inputs/outputs, it can cause the compiled Workflow Spec to bloat.

Goal: What should the final outcome look like, ideally?

Once the compiler has validated the tasks/workflows, there is no need to store type metadata in the compiled artifacts.

Describe alternatives you've considered

Pickle

Propose: Link/Inline OR Additional context

No response

Are you sure this issue hasn't been raised already?

• Yes

Have you read the Code of Conduct?

• Yes

[EngHabu]

Need to update flyteadmin to pickup the compiler change